Insulation door and aging test device

Abstract

The utility model relates to a thermal insulation door and an aging test device, comprising: a first door panel, comprising a first mounting plate and a first thermal insulation layer; a second door panel, comprising a second mounting plate and a second thermal insulation layer; the first mounting plate and the second mounting plate are stacked; in the stacking direction of the first mounting plate and the second mounting plate, the first thermal insulation layer is stacked at one end of the first mounting plate facing the second mounting plate, and the second thermal insulation layer is stacked at one end of the second mounting plate facing the first mounting plate; the first mounting plate is connected to the second mounting plate. The thermal insulation door comprises a double-layer thermal insulation structure arranged inside and outside, and the thermal insulation performance is improved compared to the single-layer thermal insulation structure in the prior art. A thermal insulation door with better thermal insulation performance can reduce the loss of heat in a sealed environment, ensure the stability of the temperature in the sealed environment, and avoid deviations in the test results of the chip.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a thermal insulation door and an aging testing device. Background Art

[0002] Before leaving the factory, the chip needs to undergo an aging test to detect the chip's service life and reliability, and the chip aging test is generally completed in an aging test device.

[0003] The aging test device includes a test body, on which a test cavity and an opening connected to the test cavity are provided. The aging test device also includes a heat preservation door installed on the test body, and the heat preservation door is used to open and close the opening. When the heat preservation door opens the opening, the chip can be placed in the test cavity through the opening for testing, or the chip after the test can be taken out of the test cavity through the opening; when the heat preservation door closes the opening, the heat preservation door and the test body together form a sealed space, so that the chip is in a sealed environment to prevent the external environment from interfering with the chip test results.

[0004] However, the thermal insulation door used in the traditional aging test device generally adopts a single-layer structure design, and its thermal insulation effect is poor. The thermal insulation door with poor thermal insulation effect is easy to cause the loss of heat in the sealed environment, resulting in poor temperature stability in the sealed environment, which in turn causes deviations in the chip test results. Utility Model Content

[0005] Based on this, it is necessary to provide a thermal insulation door and an aging test device with better thermal insulation performance to address the problem that the thermal insulation performance of the thermal insulation door of the traditional aging test device is poor.

[0006] A thermal insulation door, comprising:

[0007] A first door panel, comprising a first mounting plate and a first insulation layer;

[0008] A second door panel, comprising a second mounting plate and a second insulation layer;

[0009] The first mounting plate and the second mounting plate are stacked; in the stacking direction of the first mounting plate and the second mounting plate, the first thermal insulation layer is stacked at one end of the first mounting plate facing the second mounting plate, and the second thermal insulation layer is stacked at one end of the second mounting plate facing the first mounting plate; the first mounting plate is connected to the second mounting plate.

[0010] In one of the embodiments, in the stacking direction, the first thermal insulation layer includes a plurality of first sub-thermal insulation layers stacked on each other; and / or

[0011] In the stacking direction, the second thermal insulation layer includes a plurality of second thermal insulation sub-layers stacked on each other.

[0012] In one embodiment, the middle part of the end surface of the first mounting plate facing the second mounting plate is concave to form a first mounting cavity, and the first thermal insulation layer is covered in the first mounting cavity; the periphery of the end surface of the first mounting plate facing the second mounting plate is connected to the second mounting plate; and / or

[0013] The middle part of the end surface of the second mounting plate facing the first mounting plate is concave to form a second mounting cavity, and the second insulation layer is covered in the second mounting cavity; the periphery of the end surface of the second mounting plate facing the first mounting plate is connected to the first mounting plate.

[0014] In one embodiment, the thermal insulation door further comprises a support plate, wherein the support plate is stacked between the first door plate and the second door plate, and the first mounting plate and the second mounting plate are both connected to the support plate; and / or

[0015] The first door panel further includes a padding plate, which is mounted on one end of the first mounting plate facing the second mounting plate, and the first heat-insulating layer is stacked on the padding plate.

[0016] In one of the embodiments, the second door panel further includes a compression strip, which is installed at one end of the support plate facing the second mounting plate, so as to compress the second thermal insulation layer installed on the second mounting plate.

[0017] In one embodiment, the first insulation layer is adapted to the size of the first mounting plate, and the second insulation layer is adapted to the size of the second mounting plate; and / or

[0018] The first door panel and / or the second door panel further comprises a heat insulation strip, and in the stacking direction, the heat insulation strip is arranged between the periphery of the first mounting plate and the periphery of the second mounting plate.

[0019] In one embodiment, the thermal insulation door further comprises a support plate, wherein the support plate is stacked between the first mounting plate and the second mounting plate, and the first mounting plate and the second mounting plate are both connected to the support plate;

[0020] The first door panel further comprises a first heat insulation strip, wherein the first heat insulation strip is arranged between the first mounting plate and the support plate; and / or

[0021] The second door panel further includes a second heat insulation strip, which is disposed between the second mounting plate and the support plate, and a peripheral edge of the second heat insulation strip protrudes out of the second mounting plate.

[0022] In one embodiment, the size of the first door panel is larger than that of the second door panel, and a step portion is formed between the periphery of the first door panel and the periphery of the second door panel.

[0023] In one embodiment, the thermal insulation door further comprises a support plate, wherein the support plate is stacked between the first mounting plate and the second mounting plate, and the first mounting plate and the second mounting plate are both connected to the support plate;

[0024] The first door panel also includes a first thermal insulation strip, which is arranged between the step surface of the first mounting plate serving as the step portion and the support plate. The thermal insulation door also includes a third thermal insulation strip, which is arranged on the side of the support plate away from the first thermal insulation strip. The third thermal insulation strip cooperates with the first thermal insulation strip to surround the outer edge of the support plate.

[0025] An aging test device comprises a test body and the above-mentioned heat preservation door, wherein the test body has a test cavity and an opening connected to the test cavity, and the heat preservation door is installed on the test body to open and close the opening;

[0026] Wherein, when the thermal insulation door closes the opening, the second door panel is located on the inner side of the first door panel.

[0027] The above-mentioned thermal insulation door and aging test device, the thermal insulation door includes a first door panel and a second door panel which are stacked, the first door panel includes a first thermal insulation layer, and the second door panel includes a second thermal insulation layer. That is, the thermal insulation door includes a double-layer thermal insulation structure arranged inside and outside, and the thermal insulation performance is improved compared with the single-layer thermal insulation structure in the prior art. The thermal insulation door with good thermal insulation performance can reduce the loss of heat in the sealed environment, ensure the stability of the temperature in the sealed environment, and avoid deviations in the test results of the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 An assembly diagram of a thermal insulation door provided in one embodiment of the present application;

[0029] Figure 2 for Figure 1 An exploded view of the thermal door shown in ;

[0030] Figure 3 for Figure 1 The cross-sectional view of the thermal insulation door shown in ( Figure 3 The first insulation layer and the second insulation layer are not shown);

[0031] Figure 4 for Figure 1 Another exploded view of the thermal door shown in ( Figure 4 The first insulation layer and the second insulation layer are not shown);

[0032] Figure 5 for Figure 4 A structural diagram of the thermal insulation door from another perspective shown in ;

[0033] Figure 6 for Figure 3 An enlarged view of point A of the thermal insulation door shown in FIG.

[0034] Figure 7 for Figure 1 A front view of the thermal door shown in ;

[0035] Figure 8 for Figure 7 A cross-sectional view of the AA surface of the thermal insulation door shown in FIG.

[0036] Description of reference numerals:

[0037] 100, insulation door; 10, first door panel; 11, first mounting plate; 111, first mounting cavity; 112, bottom plate; 113, side plate; 114, folding plate; 12, first insulation layer; 121, first sub-insulation layer; 13, pad; 14, first thermal insulation strip; 20, second door panel; 21, second mounting plate; 211, second mounting cavity; 22, second insulation layer; 221, second sub-insulation layer; 23, pressing strip; 24, second thermal insulation strip; 30, step portion; 40, support plate; 50, third insulation strip; 60, handle; X, stacking direction. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0044] An embodiment of the present application provides an aging test device for performing aging tests on products. Specifically, the product that the aging test device is used to test is a chip. In order to ensure the stability and reliability of the chip, aging testing is a very important part. By performing aging tests on the chip, its performance under long-term operation and stress conditions can be evaluated, and potential problems can be discovered and repaired in a timely manner. It should be understood that there is no limitation on the types of products that the aging test device is used to test. For example, in some other embodiments, the aging test device can also be used to test other electronic components.

[0045] The following is a detailed introduction to the present application by taking the aging test device applied to a test chip as an example. It is to be understood that the description is only for example and does not limit the protection scope of the present application.

[0046] See also Figure 1 The aging test device includes a test body and a thermal insulation door 100. The test body has a test cavity and an opening, the opening is connected to the test cavity, and the thermal insulation door 100 is used to open and close the opening. When testing the chip, the thermal insulation door 100 opens the opening, and the chip is placed in the test cavity. The thermal insulation door 100 closes the opening and forms a sealed space together with the test body, and the chip is tested in the test cavity. When the chip test is completed, the thermal insulation door 100 opens the opening again and takes the chip out of the test cavity. When testing the next chip or the next batch of chips, repeat the above steps.

[0047] The thermal insulation door 100 includes a first door panel 10 and a second door panel 20, the first door panel 10 and the second door panel 20 are connected, the first door panel 10 and the second door panel 20 are stacked and cooperate to seal the opening. Specifically, when the thermal insulation door 100 closes the opening, the second door panel 20 is located on the inner side of the first door panel 10. In some specific embodiments, when the thermal insulation door 100 closes the opening, the first door panel 10 and the second door panel 20 are both crimped to the test body to seal the opening. It should be understood that in other specific embodiments, when the thermal insulation door 100 closes the opening, only the second door panel 20 is crimped to the test body to seal the opening, and at this time, the first door panel 10 is not in direct contact with the test body.

[0048] See also Figure 2 and Figure 3 , the first door panel 10 includes a first mounting plate 11 and a first thermal insulation layer 12. The second door panel 20 includes a second mounting plate 21 and a second thermal insulation layer 22. The first mounting plate 11 and the second mounting plate 21 are stacked, and in the stacking direction X of the first mounting plate 11 and the second mounting plate 21, the first thermal insulation layer 12 is stacked at one end of the first mounting plate 11 facing the second mounting plate 21, and the second thermal insulation layer 22 is stacked at one end of the second mounting plate 21 facing the first mounting plate 11. The first mounting plate 11 is connected to the second mounting plate 21. That is, the first mounting plate 11 has a first end, the second mounting plate 21 has a second end, the first end and the second end face each other in the stacking direction X of the first mounting plate 11 and the second mounting plate 21, the first thermal insulation layer 12 is arranged at the first end, and the second thermal insulation layer 22 is arranged at the second end.

[0049] In the aging test device provided in the embodiment of the present application, the thermal insulation door 100 includes a first door panel 10 and a second door panel 20 which are stacked, the first door panel 10 includes a first thermal insulation layer 12, and the second door panel 20 includes a second thermal insulation layer 22. That is, the thermal insulation door 100 includes a double-layer thermal insulation structure arranged inside and outside, and the thermal insulation performance is improved compared with the single-layer thermal insulation structure in the prior art. The thermal insulation door 100 with better thermal insulation performance can reduce the loss of heat in the sealed environment, ensure the stability of the temperature in the sealed environment, and avoid deviations in the test results of the chip.

[0050] In some embodiments, see Figure 3 , the size of the first door panel 10 is larger than that of the second door panel 20, and a step portion 30 is formed between the periphery of the first door panel 10 and the periphery of the second door panel 20. It should be noted here that the size of the first door panel 10 is larger than that of the second door panel 20, which means that the orthographic projection of the second door panel 20 on the plane where the first door panel 10 is located is located within the range of the first door panel 10. In some specific embodiments, the stacking direction X is the thickness direction of the thermal insulation door 100, and the size of the first door panel 10 in its width direction and length direction are larger than that of the second door panel 20. In this way, when the thermal insulation door 100 closes its opening, the first door panel 10 and the second door panel 20 can be crimped with the test body to ensure the test results.

[0051] It should be understood that in some other embodiments, the sizes of the first door panel 10 and the second door panel 20 are not limited. For example, the sizes of the first door panel 10 and the second door panel 20 may be equal.

[0052] Further, the size of the first mounting plate 11 is larger than the size of the second mounting plate 21, and the above-mentioned step portion 30 is formed between the first mounting plate 11 and the second mounting plate 21. The size of the first thermal insulation layer 12 is adapted to the size of the first mounting plate 11, the size of the second thermal insulation layer 22 is adapted to the size of the second mounting plate 21, and the size of the first thermal insulation layer 12 is larger than the size of the second thermal insulation layer 22 to ensure the thermal insulation effect. It is conceivable that in some other embodiments, the sizes of the first thermal insulation layer 12 and the second thermal insulation layer 22 are not limited, such as the sizes of the first thermal insulation layer 12 and the second thermal insulation layer 22 can also be set equal.

[0053] It should be noted here that the size of the first insulation layer 12 is adapted to the size of the first mounting plate 11, which means that the size of the first insulation layer 12 is comparable to that of the first mounting plate 11, so as to ensure that the first insulation layer 12 can cover the first mounting plate 11 or nearly cover the first mounting plate 11 after being installed on the first mounting plate 11. For example, in some specific embodiments, the mounting plates are all rectangular flat-plate structures. In this case, the size of the insulation layer is set to be the same as the size of the mounting plate, so that the insulation layer covers the entire mounting plate. In another specific embodiment, both the first mounting plate 11 and the second mounting plate 21 are provided with mounting cavities, and the insulation layer is installed in the corresponding mounting cavities. In this case, the size of the insulation layer is the same as the size of the mounting cavity, so as to cover most of the area of ​​the mounting plate.

[0054] In some embodiments, see Figure 4 and Figure 5 The middle part of the end surface of the first mounting plate 11 facing the second mounting plate 21 is concave to form a first mounting cavity 111, and the first thermal insulation layer 12 is covered in the first mounting cavity 111. The periphery of the end surface of the first mounting plate 11 facing the second mounting plate 21 is connected to the second mounting plate 21. The middle part of the end surface of the second mounting plate 21 facing the first mounting plate 11 is concave to form a second mounting cavity 211, and the second thermal insulation layer 22 is covered in the second mounting cavity 211. The periphery of the end surface of the second mounting plate 21 facing the first mounting plate 11 is connected to the first mounting plate 11. This arrangement, on the one hand, facilitates the assembly of the first thermal insulation layer 12 and the second thermal insulation layer 22; on the other hand, since the first thermal insulation layer 12 is installed in the first mounting cavity 111 and the second thermal insulation layer 22 is installed in the second mounting cavity 211, compared with the case where the mounting plate is not provided with an inner cavity, the thickness of the thermal insulation door 100 in the stacking direction X can be reduced.

[0055] Optionally, see Figure 6-Figure 8 , the first mounting plate 11 and the second mounting plate 21 both include a bottom plate 112 and a side plate 113, one end of the side plate 113 is connected to the bottom plate 112, and the other end extends away from the bottom plate 112 along the stacking direction X. The first mounting plate 11 and the second mounting plate 21 also include a folding plate 114, which is connected to one end of the side plate 113 away from the bottom plate 112 and folded inward relative to the side plate 113. The bottom plate 112, the side plate 113 and the folding plate 114 together define a mounting cavity, and the first mounting plate 11 and the second mounting plate 21 are connected through the folding plate 114. Specifically, the size of the first thermal insulation layer 12 matches the size of the first mounting cavity 111, and the size of the second thermal insulation layer 22 matches the size of the second mounting cavity 211, so as to ensure that the mounting cavity is filled with a thermal insulation layer everywhere, thereby ensuring the thermal insulation effect.

[0056] In some specific embodiments, the first mounting plate 11 and the second mounting plate 21 are both hollow rectangular plate structures, and in this case, the first mounting plate 11 and the second mounting plate 21 both include a bottom plate 112 and four side plates 113. The four side plates 113 are all arranged on the same side of the bottom plate 112 and one end of each is connected to the bottom plate 112, and the other end of each side plate 113 extends along the stacking direction X, and the four side plates 113 are connected end to end. The first mounting plate 11 and the second mounting plate 21 both also include four folding plates 114, and the ends of the four side plates 113 away from the bottom plate 112 are all connected with the folding plates 114, and the folding plates 114 are folded inwardly relative to the side plates 113. The bottom plate 112, the four side plates 113 and the four folding plates 114 together form a mounting cavity, and the first mounting plate 11 and the second mounting plate 21 are connected through the four folding plates 114. Of course, in some other embodiments, the shapes of the first mounting plate 11 and the second mounting plate 21 are not limited, and the configuration of the side plate 113 and the folding plate 114 changes according to the shape of the mounting plate.

[0057] Continue reading Figure 3 and Figure 6 The thermal insulation door 100 further includes a support plate 40, which is stacked between the first door panel 10 and the second door panel 20, and the first mounting plate 11 and the second mounting plate 21 are both connected to the support plate 40. Specifically, the first mounting plate 11 and the second mounting plate 21 are both connected to the support plate 40 through the folding plate 114. The support plate 40 serves as the installation base of the first door panel 10 and the second door panel 20, and plays the role of supporting the first door panel 10 and the second door panel 20.

[0058] Furthermore, the first door panel 10 further includes a backing plate 13, which is mounted on one end of the first mounting plate 11 facing the second mounting plate 21, and the first thermal insulation layer 12 is stacked on the backing plate 13. Specifically, the backing plate 13 is disposed in the first mounting cavity 111, and the first thermal insulation layer 12 is disposed on the side of the backing plate 13 facing the second mounting plate 21. The provision of the backing plate 13 facilitates the installation of the first thermal insulation layer 12. It is conceivable that in other embodiments, the backing plate 13 may also be omitted from the first door panel 10, which is not limited here.

[0059] The second door panel 20 also includes a compression strip 23 , which is installed on one end of the support plate 40 facing the second mounting plate 21 , and is used to compress the second insulation layer 22 installed on the second mounting plate 21 to prevent the second insulation layer 22 from shifting relative to the second mounting plate 21 .

[0060] Continue reading Figure 2 In the stacking direction X, the first thermal insulation layer 12 includes multiple first sub-insulation layers 121 stacked one on another, and the second thermal insulation layer 22 includes multiple second sub-insulation layers 221 stacked one on another. By stacking multiple sub-insulation layers, the thermal insulation effect of the first thermal insulation layer 12 and the second thermal insulation layer 22 can be ensured.

[0061] In some embodiments, the first sub-insulation layer 121 and the second sub-insulation layer 221 are both insulation cotton layers.

[0062] In some other embodiments, the first sub-insulation layer 121 and the second sub-insulation layer 221 may be both rubber-plastic sponge layers. Optionally, the first insulation layer 12 includes 3 rubber-plastic sponge layers, and the second insulation layer 22 includes 4 rubber-plastic sponge layers. It is conceivable that in some other embodiments, the number of rubber-plastic sponge layers included in the first insulation layer 12 and the second insulation layer 22 is not limited and is selected according to working conditions.

[0063] It is conceivable that in other embodiments, the types of materials used for the first sub-insulation layer 121 and the second sub-insulation layer 221 are not limited.

[0064] In some embodiments, the first door panel 10 and / or the second door panel 20 also include a thermal insulation strip, which is arranged between the periphery of the first mounting plate 11 and the periphery of the second mounting plate 21 to perform a thermal insulation function and prevent the heat from the external environment from being transferred to the sealed environment through the first mounting plate 11 and / or the second mounting plate 21.

[0065] Further reading Figure 4-Figure 6 The first door panel 10 includes a first thermal insulation strip 14, which is disposed between the periphery of the first mounting plate 11 and the support plate 40. Specifically, the first thermal insulation strip 14 is disposed between the step surface of the first mounting plate 11 as the step portion 30 and the support plate 40, that is, the first thermal insulation strip 14 is disposed between the folding plate 114 of the first mounting plate 11 and the support plate 40, and fasteners are passed through the folding plate 114 of the first mounting plate 11, the first thermal insulation strip 14 and the support plate 40 to fix the three. The second door panel 20 also includes a second thermal insulation strip 24, which is disposed between the periphery of the second mounting plate 21 and the support plate 40, and fasteners are passed through the folding plate 114 of the second mounting plate 21, the second thermal insulation strip 24 and the support plate 40 to fix the three. Among them, the first thermal insulation strip 14 and the second thermal insulation strip 24 are both thermal insulation strips. Since the installation cavity is filled with an insulation layer and an insulation strip is provided between the support plate 40 and the installation plate, the dual effects of the insulation layer and the insulation strip reduce the flow of heat from the sealed environment to the outside world, and reduce the flow of heat from the outside environment to the sealed environment, that is, reduce the heat exchange between the sealed environment and the outside environment, and ensure the stability of the temperature in the sealed environment.

[0066] Furthermore, the size of the first door panel 10 is larger than that of the second door panel 20, and a step portion 30 is formed between the periphery of the first door panel 10 and the periphery of the second door panel 20. The periphery of the first thermal insulation strip 14 protrudes from the support plate 40, and the second thermal insulation strip 24 protrudes from the second mounting plate 21. In some specific embodiments, when the first mounting plate 11 and the second mounting plate 21 are both rectangular structures, the periphery of the first thermal insulation strip 14 in the length direction and the width direction protrudes from the support plate 40, and the periphery of the second thermal insulation strip 24 in the length direction and the width direction protrudes from the second mounting plate 21. With this arrangement, when the thermal insulation door 100 closes the opening, the first door panel 10 is crimped to the test body through the first thermal insulation strip 14, and the second door panel 20 is crimped to the test body through the second thermal insulation strip 24, thereby avoiding direct contact between the first mounting plate 11 and the second mounting plate 21 and the test body, avoiding the transfer of external heat and heat in the sealed environment through the first mounting plate 11 and the second mounting plate 21, and ensuring the thermal insulation effect.

[0067] In some embodiments, see Figure 4-Figure 6 The thermal insulation door 100 further includes a third thermal insulation strip 50, which is disposed on the side of the support plate 40 away from the first thermal insulation strip 14, and the third thermal insulation strip 50 cooperates with the first thermal insulation strip 14 to surround the outer edge of the support plate 40. That is, the third thermal insulation strip 50 cooperates with the first thermal insulation strip 14 to prevent the support plate 40 from being exposed to the outside world. Generally, the support plate 40 is a sheet metal part with sharp edges. The third thermal insulation strip 50 cooperates with the first thermal insulation strip 14 to wrap the outer edge of the support plate 40, which can effectively avoid the risk of the support plate 40 scratching the assembler during the installation process.

[0068] In some specific embodiments, the first thermal insulation strip 14 is an L-shaped structure, one end of the L-shaped structure is disposed between the first mounting plate 11 and the support plate 40, and the other end of the L-shaped structure extends toward the third thermal insulation strip 50 and abuts against the third thermal insulation strip 50 to wrap the outer edge of the support plate 40. Specifically, when the thermal insulation door 100 closes the opening, the second thermal insulation strip 24 and the third thermal insulation strip 50 are crimped with the test body. The first thermal insulation strip 14, the second thermal insulation strip 24 and the third thermal insulation strip 50 are all made of thermal insulation materials.

[0069] In some embodiments, a handle mounting portion is further provided on the first mounting plate 11, and the handle mounting portion is used to mount the handle 60. After the handle 60 is mounted on the handle mounting portion, it is convenient to subsequently assemble the thermal insulation door 100 to the machine platform for transportation and to debug and verify the automatic opening and closing of the thermal insulation door 100 in the initial stage. It should be noted that after the debugging and verification of the thermal insulation door 100 is correct, the handle 60 can be removed. In some specific embodiments, the handle mounting portion is a mounting hole provided on the first mounting plate 11.

[0070] In some embodiments, a heater is provided near the opening of the test body and / or on the thermal insulation door 100. The provision of the heater can prevent frost and condensation on the thermal insulation door 100 during low temperature testing. Optionally, the heater includes a heating pad or a heating sheet.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A thermal insulation door, characterized in that: include: A first door panel (10) comprises a first mounting plate (11) and a first thermal insulation layer (12); A second door panel (20), comprising a second mounting plate (21) and a second thermal insulation layer (22); The first mounting plate (11) and the second mounting plate (21) are stacked; in a stacking direction (X) of the first mounting plate (11) and the second mounting plate (21), the first thermal insulation layer (12) is stacked on one end of the first mounting plate (11) facing the second mounting plate (21), and the second thermal insulation layer (22) is stacked on one end of the second mounting plate (21) facing the first mounting plate (11); the first mounting plate (11) and the second mounting plate (21) are connected.

2. The thermal insulation door according to claim 1, characterized in that: In the stacking direction (X), the first thermal insulation layer (12) comprises a plurality of first sub-thermal insulation layers (121) stacked on top of each other; and / or In the stacking direction (X), the second thermal insulation layer (22) comprises a plurality of second sub-thermal insulation layers (221) stacked on top of each other.

3. The thermal insulation door according to claim 1, characterized in that: The middle part of the end surface of the first mounting plate (11) facing the second mounting plate (21) is concave to form a first mounting cavity (111), and the first thermal insulation layer (12) is covered in the first mounting cavity (111); the periphery of the end surface of the first mounting plate (11) facing the second mounting plate (21) is connected to the second mounting plate (21); and / or The middle part of the end surface of the second mounting plate (21) facing the first mounting plate (11) is concave to form a second mounting cavity (211), and the second thermal insulation layer (22) is covered in the second mounting cavity (211); the periphery of the end surface of the second mounting plate (21) facing the first mounting plate (11) is connected to the first mounting plate (11).

4. The thermal insulation door according to claim 1, characterized in that: The thermal insulation door further comprises a support plate (40), wherein the support plate (40) is stacked between the first door plate (10) and the second door plate (20), and the first mounting plate (11) and the second mounting plate (21) are both connected to the support plate (40); and / or The first door panel (10) further comprises a backing plate (13), wherein the backing plate (13) is mounted on one end of the first mounting plate (11) facing the second mounting plate (21), and the first thermal insulation layer (12) is stacked on the backing plate (13).

5. The thermal insulation door according to claim 4, characterized in that: The second door panel (20) further comprises a pressing strip (23), wherein the pressing strip (23) is mounted on one end of the support plate (40) facing the second mounting plate (21) and is used for pressing the second thermal insulation layer (22) mounted on the second mounting plate (21).

6. The thermal insulation door according to claim 1, characterized in that: The first thermal insulation layer (12) is adapted to the size of the first mounting plate (11), and the second thermal insulation layer (22) is adapted to the size of the second mounting plate (21); and / or The first door panel (10) and / or the second door panel (20) further comprises a heat insulation strip, and in the stacking direction (X), the heat insulation strip is arranged between the periphery of the first mounting plate (11) and the periphery of the second mounting plate (21).

7. The thermal insulation door according to claim 6, characterized in that: The thermal insulation door further comprises a support plate (40), wherein the support plate (40) is stacked between the first mounting plate (11) and the second mounting plate (21), and the first mounting plate (11) and the second mounting plate (21) are both connected to the support plate (40); The first door panel (10) further comprises a first heat insulation strip (14), wherein the first heat insulation strip (14) is arranged between the first mounting plate (11) and the support plate (40); and / or The second door panel (20) further comprises a second heat insulation strip (24), wherein the second heat insulation strip (24) is arranged between the second mounting plate (21) and the support plate (40), and the periphery of the second heat insulation strip (24) protrudes from the second mounting plate (21).

8. The thermal insulation door according to any one of claims 1 to 6, characterized in that: The size of the first door panel (10) is larger than the size of the second door panel (20), and a step portion (30) is formed between the periphery of the first door panel (10) and the periphery of the second door panel (20).

9. The thermal insulation door according to claim 8, characterized in that: The thermal insulation door further comprises a support plate (40), wherein the support plate (40) is stacked between the first mounting plate (11) and the second mounting plate (21), and the first mounting plate (11) and the second mounting plate (21) are both connected to the support plate (40); The first door panel (10) further comprises a first thermal insulation strip (14), wherein the first thermal insulation strip (14) is arranged between the step surface of the first mounting plate (11) serving as the step portion (30) and the support plate (40), and the thermal insulation door further comprises a third thermal insulation strip (50), wherein the third thermal insulation strip (50) is arranged on a side of the support plate (40) facing away from the first thermal insulation strip (14), and the third thermal insulation strip (50) cooperates with the first thermal insulation strip (14) to surround the outer edge of the support plate (40).

10. The thermal insulation door according to claim 7, characterized in that: The size of the first door panel (10) is larger than the size of the second door panel (20), and a step portion (30) is formed between the periphery of the first door panel (10) and the periphery of the second door panel (20).

11. The thermal insulation door according to claim 10, characterized in that: The first thermal insulation strip (14) is arranged between the step surface of the first mounting plate (11) serving as the step portion (30) and the support plate (40), and the thermal insulation door further comprises a third thermal insulation strip (50), wherein the third thermal insulation strip (50) is arranged on a side of the support plate (40) facing away from the first thermal insulation strip (14), and the third thermal insulation strip (50) cooperates with the first thermal insulation strip (14) to surround an outer edge of the support plate (40).

12. An aging test device, characterized in that: The thermal insulation door comprises a test body and any one of claims 1 to 11, wherein the test body has a test cavity and an opening connected to the test cavity, and the thermal insulation door is mounted on the test body to open and close the opening; Wherein, when the heat-insulating door closes the opening, the second door panel (20) is located on the inner side of the first door panel (10).

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